Improvement in bobbin-winders for sewing-machines



P. KENNEDY, JIM, & N. G. LINNY. BOBBIIT-WINDERS FOR SEWING-MACHINES.

N o 174 6 3 O Patented March 14, 11876.

INVENTORS ATTQRNEYS.

N,PE[ERS/, PHOTO-LITHQGRAPH entire length of the bobbin.

UNITED STATES PATENT OFFICE.

PATRICK KENNEDY, JR, AND NATHAN G. LINNY, OF WATERTOWN, N. Y.

IMPROVEMENT IN BOBBlN-WINDERS FOR SEWING-MACHINES Specification forming part of Letters Patent No. 174,630, dated March 14, 1876; application filed March 24, 1875.

To all whom it may concern Be it known that we, PATRICK KENNEDY, J r., and NATHAN G. LINNY, of Watertown, in the county of Jefferson and State of New York, have invented new and useful Improvements in Bobbin-Winders for Sewing-Machines; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being bad to the accompanying drawing, forming part of this specification, in which the figure is a perspective View of a bobbin-winder embodying our invention.

The object of this invention is to produce abobbin-winder for sewing-machines which shall wind the thread evenly and compactly upon the spool, so as to form a smooth, handsome, cylindrical bobbin, substantially as shown in the drawing.

To this end the invention consists in an- 'the guide plate so that the latter shall compact smooth and shape the bobbin during the winding process.

The bobbin-winders in general use are provided with angular distributing-arms, but instead of being constructed with a wide convex pressure and guide plate, they are made with a narrow bearing-surface, which carries the thread and distributes it by reciprocating the This construction does not shape and compact the bobbin uniformly but simply distributes the thread;

whereas by our invention each layer of thread is shaped, compacted, and smoothed as it is laid upon the spool.

In the drawings, A represents the ordinary bobbin-winder, in which the bobbin a is held and rotated by means of the usual spindles, a M. S is a shaft or rod upon which, between collars s s, is mounted" an angular rocking plate, M, the enlarged convex end m of said plate resting against the bobbin, while the opposite end is pierced with holes through which passes the thread t. In winding the bobbin the thread holds the the edge m with considerable force against'the side of the bobbin, thereby smoothing and compacting the latter as it is built up. The plate adjusts itself to the thickness of the bobbin, and, it its convex edge between the end shoulders thereof is too short for the particular spool employed, the plate is adapted to slide to a slight extent on the shaft so as to make up for the deficiency. The edge of the plate forms the bobbin in exactly the required shape, and, in connection with the holes at the opposite end through which the thread is passed, constitutes an excellent tension, which may be reglated by using more or less of the holes.

We claim as our invention, in bobbin-winders for sewing-machines' In a bobbin-winder the thread-guide, distributing, tension, and pressure-plate M, having a long convex upper edge, m, and the, perforated arm X, as shown in combination with the shaft ,8, as and for the purpose specified.

' PATRICK KENNEDY, 'JR. NATHAN G. LIN N Y. Witnesses:

CHAS. W. BURDICK, L. H. AINSWORTH. 

